Route · ORD → BIL · 2020–2025 BTS data
Chicago to Billings
The ORD–BIL corridor (Chicago, IL → Billings, MT) runs ahead of the national average, served by 3 carriers across roughly 1,060 miles.
Data updated 2026-06-13
- 82%
- On-time
- +3 pts
- vs US avg
- 61 min
- Delay when late
- 632
- Flights
Cancelled
0.3%
Best Month
Oct 2025 88%
Worst Month
Jul 2025 67%
Distance
1,060 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Oct 2025 | 60 | 7 | 0 | 0 | OO,MQ |
| Sep 2025 | 90 | 13 | 0 | 2 | MQ,OO |
| Aug 2025 | 93 | 13 | 1 | 0 | OO,MQ |
| Jul 2025 | 93 | 31 | 1 | 0 | OO,MQ |
| Jun 2025 | 82 | 21 | 0 | 0 | OO,MQ |
| Sep 2024 | 30 | 1 | 0 | 0 | MQ |
| Aug 2024 | 31 | 1 | 0 | 0 | MQ |
| Jul 2024 | 31 | 5 | 0 | 0 | MQ |
| Jul 2023 | 31 | 10 | 0 | 0 | MQ |
| Jun 2023 | 30 | 2 | 0 | 0 | MQ |
| Jul 2022 | 31 | 6 | 0 | 0 | MQ |
| Jul 2021 | 30 | 4 | 0 | 0 | MQ |
Cancellation Rate
0.3%
2 of 632 flights
Diversion Rate
0.3%
2 of 632 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →BIL - Billings
Full on-time, delay-cause, and seasonal performance for Billings, MT.
Destination airport →Compare the two airports
See ORD and BIL side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–BIL.
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What the Data Says About ORD to BIL
Bureau of Transportation Statistics records show Chicago to Billings (ORD to BIL) running a 82% on-time rate over 632 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 61.4 minutes. The 1,060-mile corridor is served by 3 carriers, and over the last 24 months 0.3% of 632 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 88% on-time, while Jul 2025 came in at just 67% - a 22-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.